### DESCRIPTION

Ericsson Chatboard replacement PCB with Micro-USB interface. Firmware is here:

https://github.com/robotsrulz/chatboard

### TECHNICAL DETAILS / COMPONENTS

ABM3-8MHZ,4SMX,8.000

C1-C2,CAP_0603,22p,0603

C3-C4,CAP_0603,100n,0603

C5,CAP_0603,4.7u,0603

C6,CAP_0603,10n,0603

C7-C8,CAP_0603,1u,0603

C9-C10,CAP_0603,100n,0603

C11,CAP_0603,4.7u,0603

C12,CAP_0603,1u,0603

D1-D6,SD101AW

LED1,DIODE_0603

LED2,DIODE_0603

MCP1700-3.3,MCP1700_TT

PWR,DIODE_0603

R1-R5,RES_0603,10K

R6,RES_0603,100k,0603

R7,RES_0603,4.7k,0603

R8-R10,RES_0603,360R,0603

R11,RES_0603,22R,0603

R12,RES_0603,100k,0603

R13,RES_0603,22R,0603

R14-R23,RES_0603,1K,0603

STM32F042K6T6

USBLC6-2SC6,USBLC6-2SC6

### LEARN / TOPIC / BUILD INSTRUCTIONS

Build firmware with EmBitz 1.11, then upload with DfuSe or via JTAG interface.